PB-538 無線門鈴

After paired with the Multi-Alert Receiver, the wireless door bell press can transmit a wireless signal to receiver when the button was pressed. SUB-1G RF frequency with wireless transmission range up to 300m / 1,000ft (direct line of sight)

SUB-1G射頻頻率，無線傳輸範圍高達300m / 1,000ft（直接視線）

• 在門外放置作為門鈴按或在室內作為呼叫按鈕

• IP56防水外殼設計

• 接收器電池電量不足指示

• 帶安裝支架